<template>
  <view class="uni-card" :class="{ 'uni-card--full': isFull, 'uni-card--shadow': isShadow, 'uni-card--border': border }" :style="{ margin: isFull ? 0 : margin, padding: spacing, 'box-shadow': isShadow ? shadow : '' }">
    <!-- 封面 -->
    <slot name="cover">
      <view v-if="cover" class="uni-card__cover">
        <image class="uni-card__cover-image" mode="widthFix" @click="onClick('cover')" :src="cover"></image>
      </view>
    </slot>
    <slot name="title">
      <view v-if="title || extra" class="uni-card__header">
        <!-- 卡片标题 -->
        <view class="uni-card__header-box" @click="onClick('title')">
          <view v-if="thumbnail" class="uni-card__header-avatar">
            <image class="uni-card__header-avatar-image" :src="thumbnail" mode="aspectFit" />
          </view>
          <view class="uni-card__header-content">
            <text class="uni-card__header-content-title uni-ellipsis">{{ title }}</text>
            <text v-if="title && subTitle" class="uni-card__header-content-subtitle uni-ellipsis">{{ subTitle }}</text>
          </view>
        </view>
        <view class="uni-card__header-extra" @click="onClick('extra')">
          <text class="uni-card__header-extra-text">{{ extra }}</text>
        </view>
      </view>
    </slot>
    <!-- 卡片内容 -->
    <view class="uni-card__content" :style="{ padding: padding }" @click="onClick('content')">
      <slot></slot>
    </view>
    <view class="uni-card__actions" @click="onClick('actions')">
      <slot name="actions"></slot>
    </view>
  </view>
</template>

<script lang="ts">
/**
 * Card 卡片
 * @description 卡片视图组件
 * @tutorial https://ext.dcloud.net.cn/plugin?id=22
 * @property {String} title 标题文字
 * @property {String} subTitle 副标题
 * @property {Number} padding 内容内边距
 * @property {Number} margin 卡片外边距
 * @property {Number} spacing 卡片内边距
 * @property {String} extra 标题额外信息
 * @property {String} cover 封面图（本地路径需要引入）
 * @property {String} thumbnail 标题左侧缩略图
 * @property {Boolean} is-full = [true | false] 卡片内容是否通栏，为 true 时将去除padding值
 * @property {Boolean} is-shadow = [true | false] 卡片内容是否开启阴影
 * @property {String} shadow 卡片阴影
 * @property {Boolean} border 卡片边框
 * @event {Function} click 点击 Card 触发事件
 */
export default {
  name: "UniCard",
  emits: ["click"],
  props: {
    title: {
      type: String,
      default: "",
    },
    subTitle: {
      type: String,
      default: "",
    },
    padding: {
      type: String,
      default: "10px",
    },
    margin: {
      type: String,
      default: "15px",
    },
    spacing: {
      type: String,
      default: "0 10px",
    },
    extra: {
      type: String,
      default: "",
    },
    cover: {
      type: String,
      default: "",
    },
    thumbnail: {
      type: String,
      default: "",
    },
    isFull: {
      // 内容区域是否通栏
      type: Boolean,
      default: false,
    },
    isShadow: {
      // 是否开启阴影
      type: Boolean,
      default: true,
    },
    shadow: {
      type: String,
      default: "0px 0px 3px 1px rgba(0, 0, 0, 0.08)",
    },
    border: {
      type: Boolean,
      default: true,
    },
  },
  methods: {
    onClick(type) {
      this.$emit("click", type);
    },
  },
};
</script>

<style lang="scss">
$uni-border-3: #ebeef5 !default;
$uni-shadow-base: 0 0px 6px 1px
  rgba(
    $color: #a5a5a5,
    $alpha: 0.2,
  ) !default;
$uni-main-color: #3a3a3a !default;
$uni-base-color: #6a6a6a !default;
$uni-secondary-color: #909399 !default;
$uni-spacing-sm: 8px !default;
$uni-border-color: $uni-border-3;
$uni-shadow: $uni-shadow-base;
$uni-card-title: 15px;
$uni-cart-title-color: $uni-main-color;
$uni-card-subtitle: 12px;
$uni-cart-subtitle-color: $uni-secondary-color;
$uni-card-spacing: 10px;
$uni-card-content-color: $uni-base-color;

.uni-card {
  margin: $uni-card-spacing;
  padding: 0 $uni-spacing-sm;
  border-radius: 4px;
  overflow: hidden;
  font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, SimSun, sans-serif;
  background-color: #fff;
  flex: 1;

  .uni-card__cover {
    position: relative;
    margin-top: $uni-card-spacing;
    flex-direction: row;
    overflow: hidden;
    border-radius: 4px;
    .uni-card__cover-image {
      flex: 1;
      // width: 100%;
      /* #ifndef APP-PLUS */
      vertical-align: middle;
      /* #endif */
    }
  }

  .uni-card__header {
    display: flex;
    border-bottom: 1px $uni-border-color solid;
    flex-direction: row;
    align-items: center;
    padding: $uni-card-spacing;
    overflow: hidden;

    .uni-card__header-box {
      /* #ifndef APP-NVUE */
      display: flex;
      /* #endif */
      flex: 1;
      flex-direction: row;
      align-items: center;
      overflow: hidden;
    }

    .uni-card__header-avatar {
      width: 40px;
      height: 40px;
      overflow: hidden;
      border-radius: 5px;
      margin-right: $uni-card-spacing;
      .uni-card__header-avatar-image {
        flex: 1;
        width: 40px;
        height: 40px;
      }
    }

    .uni-card__header-content {
      /* #ifndef APP-NVUE */
      display: flex;
      /* #endif */
      flex-direction: column;
      justify-content: center;
      flex: 1;
      // height: 40px;
      overflow: hidden;

      .uni-card__header-content-title {
        font-size: $uni-card-title;
        color: $uni-cart-title-color;
        // line-height: 22px;
      }

      .uni-card__header-content-subtitle {
        font-size: $uni-card-subtitle;
        margin-top: 5px;
        color: $uni-cart-subtitle-color;
      }
    }

    .uni-card__header-extra {
      line-height: 12px;

      .uni-card__header-extra-text {
        font-size: 12px;
        color: $uni-cart-subtitle-color;
      }
    }
  }

  .uni-card__content {
    padding: $uni-card-spacing;
    font-size: 14px;
    color: $uni-card-content-color;
    line-height: 22px;
  }

  .uni-card__actions {
    font-size: 12px;
  }
}

.uni-card--border {
  border: 1px solid $uni-border-color;
}

.uni-card--shadow {
  position: relative;
  /* #ifndef APP-NVUE */
  box-shadow: $uni-shadow;
  /* #endif */
}

.uni-card--full {
  margin: 0;
  border-left-width: 0;
  border-left-width: 0;
  border-radius: 0;
}

/* #ifndef APP-NVUE */
.uni-card--full:after {
  border-radius: 0;
}

/* #endif */
.uni-ellipsis {
  /* #ifndef APP-NVUE */
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  /* #endif */
  /* #ifdef APP-NVUE */
  lines: 1;
  /* #endif */
}
</style>
